Use zopfli if available

[plack-app-gruntmaster.git] / make_static.PL

diff --git a/make_static.PL b/make_static.PL
index a47df2d8511d289c6ca62eee73a9bd5fe06ccd69..9fd5bcaf62916cb024ac8c59c07f7030a2ff1772 100644 (file)
--- a/make_static.PL
+++ b/make_static.PL
@@ -2,23 +2,91 @@
 use v5.14;
 use warnings;
 
-use CSS::Minifier::XS qw//;
-use JavaScript::Minifier::XS qw//;
-
-use File::Slurp qw/read_file write_file/;
+use CSS::Minifier::XS qw/minify/;
+use Digest::SHA qw/sha256_base64/;
+use IO::Compress::Gzip qw/gzip/;
+use File::Slurp qw/read_file write_file edit_file_lines/;
+use File::Which;
+use List::Util qw/first/;
 
 mkdir 'static';
 mkdir 'static/css';
+mkdir 'static/js';
+
+sub gzip_file {
+       my ($file) = @_;
+       my $zopfli = which 'zopfli';
+       system $zopfli => $file if $zopfli;
+       gzip $file => "$file.gz", -Level => 9, Minimal => 1 unless $zopfli;
+}
+
+sub write_gzfile {
+       my ($file, @content) = @_;
+       write_file $file, @content;
+       gzip_file $file
+}
+
+sub read_css_into_blocks {
+       my ($file) = @_;
+       my (@blocks, $block);
+       for (read_file $file) {
+               $block .= $_;
+               if (/^}/) {
+                       push @blocks, $block;
+                       $block = '';
+               }
+       }
+       \@blocks
+}
+
+sub make_css {
+       my %css;
+       $css{common} .= read_file $_ for <css/*.css>;
+
+       my (%themes, $rndtheme);
+       for (<css/themes/*>) {
+               ($rndtheme) = m,themes/(.*)\.css,;
+               $themes{$rndtheme} = read_css_into_blocks $_;
+       }
+
+       while (grep { scalar @$_ } values %themes) {
+               my %blocks = map { $_ => (shift @{$themes{$_}}) // '' } keys %themes;
+               if (grep { $_ ne $blocks{$rndtheme} } values %blocks) {
+                       $css{$_} .= $blocks{$_} for keys %themes;
+               } else {
+                       $css{common} .= $blocks{$rndtheme};
+               }
+       }
+
+       write_gzfile "static/css/$_.css", minify $css{$_} for keys %css
+}
+
+sub make_js {
+       system java => -jar => 'compiler.jar', qw,-O SIMPLE --create_source_map static/js/js.map --js_output_file static/js/all.js --language_in ECMASCRIPT6_STRICT --language_out ECMASCRIPT5_STRICT --source_map_location_mapping js/|/static/js/,, <js/*>;
+       my $js = read_file 'static/js/all.js';
+       write_gzfile 'static/js/all.js', '//# sourceMappingURL=/static/js/js.map', "\n", $js;
+       system 'cp', '-rp', 'js', 'static/';
+}
+
+my $css_mtime = -M 'static/css/slate.css' // 0;
+for (<css/*>, <css/themes/*>) {
+       if (!$css_mtime || $css_mtime > -M) {
+               make_css;
+               last
+       }
+}
 
-my $common_css;
-$common_css .= read_file $_ for <css/*.css>;
-for (<css/themes/*>) {
-       my ($theme) = m,themes/(.*)\.css,;
-       my $css = read_file $_;
-       $css .= $common_css;
-       write_file "static/css/$theme.css", CSS::Minifier::XS::minify $css;
+my $js_mtime = -M 'static/js/all.js' // 0;
+for (<js/*>) {
+       if (!$js_mtime || $js_mtime > -M) {
+               make_js;
+               last
+       }
 }
 
-my $js;
-$js .= read_file $_ for <js/*.js>;
-write_file 'static/js.js', JavaScript::Minifier::XS::minify $js;
+edit_file_lines {
+       my ($file) = m,(static.*\.(?:css|js)),;
+       return unless $file;
+       my $hash = sha256_base64 scalar read_file $file;
+       s/integrity=".*"/integrity="sha256-$hash="/;
+} 'tmpl/skel.en'